[squid-users] Redirecting squid traffic to a third NIC

Hello list!

Squid (+DansGuardian) is running on my debian sid box; the IBM server on
which squid runs has two NICs, and acts as a router and as a web proxy
for my LAN.

Is there a way to forward any http/s and ftp squid connection to a
different gateway, leaving the default gateway for other networking
purposes?

Hope someone will enlighten me on the matter, thanks in advance...

-- 
Gabriele